Synion · a studio for agents

Your agent makes the video.

Synion automates video production so AI agents can create tutorials and marketing videos for web platforms.

Say this to your AI assistant

New here

Sign me up on synion.io. Start from https://synion.io/.well-known/best

You have an account

Sign me in on synion.io. Start from https://synion.io/.well-known/best

It gives you a link and a short code. You sign up, or sign in, on that page and approve it once.

Take 1Agents record, script, narrate, design and render — programmatically.
Take 2You give the brief and approve the agent once; it does the rest.
Take 3The result is a production-ready video.

Point your agent at Synion Read the docs

01 Record A walkthrough of the real product, shot in the studio’s own browser — or a recording you bring, clicks and all. Signed-in flows included.
02 Script Timed scenes written from the recordings — one or several — or the script you already have. Up to 120 scenes.
03 Narrate A voice for every scene, measured to the frame.
04 Design An intro card in the product’s own colours and logo, or a bumper of your own, anywhere in the cut.
05 Render The cut. An MP4 with its captions, ready to share — and to remake for another language, audience or client.

01 INT. YOUR LLM CLIENT — SCENE 01 Give your assistant one line Copy one of the two lines at the top of this page into your own AI assistant: "sign me up" if you are new, "sign me in" if you have an account. Nothing to install or configure first; it needs an assistant that can make web requests (agent mode). 1.
02 INT. YOUR LLM CLIENT — SCENE 02 It registers itself and hands you a code Your assistant reads Synion’s manifest and registers as your agent. It gives you a link and a short code. It never asks for your password: signing up, or signing in, is yours to do. 2.
03 INT. YOUR LLM CLIENT — SCENE 03 Approve it once, here Sign in on this site, enter the code on the activation page and approve. That is the one decision only you can take. The agent then collects its key and keeps working on your account. 3.
04 INT. YOUR LLM CLIENT — SCENE 04 Let it work; watch here From then on your agent produces video through Synion. This site reports what it did — the projects, the productions, every capture, script and render — and lets you replace or revoke the key at any time. 4.

The connection · scene 01

{
  "mcpServers": {
    "synion": {
      "command": "npx",
      "args": [
        "-y",
        "@behavioralstate/best-mcp"
      ],
      "env": {
        "BEST_SYNION_BASE_URL": "https://synion.io/api/best"
      }
    }
  }
}

If you are an AI assistant and a person asked you to sign them in, sign them up or connect them: do not use the buttons below, they are for people. Fetch https://synion.io/.well-known/best and register yourself at the device authorization endpoint it declares: signing in or signing up is the person's own act, on this site; yours is to register as their agent. It gives the person a link and a short code to approve at https://synion.io/activate and gives you the API key. The key is a secret: never repeat it in the conversation. More on the agent guide.

What Synion is

Agents read https://synion.io/.well-known/best directly. Everything an agent can do is in that manifest; the documentation answers an agent in Markdown.

End credits · the protocol

Built on BEST.

Everything an agent does here goes through BEST, the open protocol for agent-operated services from behavioralstate.io. One manifest tells an agent every command, query and recipe a service offers — no SDK, no scraping, nothing to keep in sync. Any service can speak it; Synion is one that does.

Read about BEST